EP0769038B1 - Synthetic mortar resin compositions - Google Patents

Abstract

A paraffin-free resin composition consisting of a two-component system. The first component (A) includes, for 100 parts by weight, at least 50 parts by weight of at least one alkoxylated bisphenol A di(alk)acrylate of general formula (I), wherein R, R' and R" are independently a hydrogen atom or C1-4 alkyl radicals, and n is an integer from 1-10; 0-46 parts by weight of at least one ethylenically unsaturated comonomer which is copolymerisable with the compound of formula (I) and can reduce the viscosity thereof; and 0.1-4 parts by weight of at least one organic peroxide decomposition promoter. The second component (B) includes, for 100 parts by weight of (A), 3-12 parts by weight of at least one organic peroxide-type polymerisation catalyst, and at least one polymerisation promoter in a proportion of 0.5-9 times the weight of said polymerisation catalyst. Said composition is useful for preparing synthetic mortars and floor coverings.

Description

The present invention relates to compositions of resin for mortar, the corresponding synthetic mortar, its manufacturing process and their application to flooring and walls.

For the coating of floors we already know mortars to based on epoxy resins, whose hardening allows them a time long enough to carry out repairs or touch-ups during installation. However, the high viscosity of epoxy resins prohibit the incorporation of a high rate of fillers and therefore leads to coatings having a low resistance to compression. On the other hand the hardening of the epoxy resin requires the use of relatively toxic amino products and therefore difficult for the manipulators to bear. Finally the weak curing speed prohibits rapid construction of sites and immobilizes for several days the premises in which the flooring must be laid.

We also know the flooring by means of mortars to polyurethane resin base. The soils obtained have a good chemical resistance and flexibility which makes them comfortable for the user. However, the hardening of the resin being sensitive to the humidity of the ambient air, its speed is depends on the humidity level of the room to be coated and therefore is not controllable. As with epoxy resins, their very high viscosity limits the speed of execution of the site.

Finally we also know the floor covering by means of mortars based on methyl methacrylate resin. Their weak viscosity and their high reactivity allow obtaining good mechanical properties and speed of execution of the site unmatched. They also authorize the construction of sites for temperatures very close to 0 ° C, which is not the case for resins epoxy or polyurethanes. However, the chemical resistance of soil obtained is insufficient, in particular with respect to acids and / or strong oxidants. On the other hand, the unpleasant smell of methyl methacrylate is difficult to bear for workers who apply the resin on the site. Finally, thermal resistance coatings obtained is low even at a temperature about 80 ° C, which makes them unsuitable for steam cleaning.

• 50 à 95% en poids d'un di(méth)acrylate de bisphénol A alcoxylé, et
• 50 à 5% en poids d'un (méth)acrylate d'alkyle hydroxylé.

Document FR-A-2,301,542 describes an air-curable sealant composition comprising an organic peroxide (in an amount of 0.3 to 3% of the composition) and a mixture of:

• 50 to 95% by weight of an alkoxylated bisphenol A di (meth) acrylate, and
• 50 to 5% by weight of a hydroxylated (meth) acrylate.

• 5 à 15% en poids par rapport à l'agent de réticulation, et/ou,
• 2 à 23% en poids par rapport à la résine.

EP-A-249.701 describes a composition (such as adhesive, sealing material, coating) with two components intended to be mixed only at the time of use, the first component being an epoxy resin, unsaturated polyester , vinyl ester, polyurethane or silicone and the second component being a crosslinking agent for said resin, characterized in that at least one of the two components is gelled by the addition of a viscosity modifier used in the proportion of:

• 5 to 15% by weight relative to the crosslinking agent, and / or,
• 2 to 23% by weight relative to the resin.

• à raison de 20 à 80% en poids, un diméthacrylate de bisphénol-A époxydé ou éthoxylé,
• à raison de 80 à 20% en poids, au moins un monomère (méth)acrylique tel que les méthacrylates de méthyle, d'isobornyle, de dicyclopentaneoxyéthyle, d'hydroxyéthyle, de 2-éthylhexyle, d'octyle et de nonyle,
• un peroxyde, tel que celui de benzyle, comme catalyseur de polymérisation,
• de la diméthylparatoluidine comme accélérateur de décomposition du peroxyde, et
• lors d'une polymérisation à l'air, de la paraffine destinée à constituer un film protecteur.

Document EP-A-555,117 describes a resin which can be used either alone as a floor covering or, in combination with mineral and / or organic fillers, as agglomeration binder for making synthetic concretes. This resin combines:

• in an amount of 20 to 80% by weight, an epoxidized or ethoxylated bisphenol-A dimethacrylate,
• at a rate of 80 to 20% by weight, at least one (meth) acrylic monomer such as methyl, isobornyl, dicyclopentaneoxyethyl, hydroxyethyl, 2-ethylhexyl, octyl and nonyl methacrylates,
• a peroxide, such as that of benzyl, as a polymerization catalyst,
• dimethylparatoluidine as a peroxide decomposition accelerator, and
• during an air polymerization, paraffin intended to constitute a protective film.

There are several types of technical issues associated with the teaching of document EP-A-555.117, in the first place the fact that the resin cannot be polymerized in air in the absence of paraffin. In this regard, it is important to note that paraffin does not can be an effective protective film only if it is incompatible with all other components of the resinous system. However experience shows that paraffin is absolutely compatible with some of the (meth) acrylic monomers mentioned and given in example by document EP-A-555.117, in particular acrylate from nonyle. In addition, the use of paraffin leads to a certain number adverse consequences for the practical use of these softwood systems in floor coverings and concrete synthetic. First, paraffin induces polymerization very slow (usually several hours to several tens of hours), therefore poorly controlled and accompanied by maintenance a sticky phenomenon on the surface of the coating which prohibits the use of the premises for a significant period after applying the resin. On the other hand, the presence of paraffin gives the final coating a matt appearance which, for reasons of aesthetic choice, not suitable in certain premises.

• bonne résistance à la compression et à l'abrasion.
• bonne résistance thermique, c'est-à-dire résistance à une température d'au moins 100°C, y compris en atmosphère humide. - bonne résistance aux agressions des agents chimiques tels que les solvants organiques, les acides et les bases.
• vitesse de polymérisation de la résine élevée pour permettre une pose rapide du revêtement et garantir une exécution rapide du chantier, tout en autorisant une utilisation normale du sol rapidement après la pose.
• absence d'odeur des composants de la résine, de manière à améliorer les conditions de travail des opérateurs sur le chantier et, lorsque le chantier progresse par tranches sur un lieu de travail, des travailleurs voisins ; cette condition est particulièrement importante à remplir car l'emploi de composants odoriférants comme le méthacrylate de méthyle exige le plus souvent la présence sur le chantier du représentant qualifié en matière de sécurité de l'entreprise ayant demandé les travaux et risque le plus souvent de perturber le travail des autres travailleurs de cette entreprise. De plus si le chantier doit être réalisé ou poursuivi après les jours normaux de travail, en particulier le samedi et le dimanche, alors dans de nombreux pays il sera nécessaire de rémunérer les opérateurs du chantier à un taux supérieur à celui des jours ordinaires et/ou d'obtenir une autorisation administrative préalable de la part des autorités locales compétentes en matière de réglementation du travail et/ou de respect de l'environnement.

We are therefore looking for resins allowing, in a synthetic mortar, to obtain floor coverings having the following properties:

• good resistance to compression and abrasion.
• good thermal resistance, that is to say resistance to a temperature of at least 100 ° C., including in a humid atmosphere. - good resistance to attack by chemical agents such as organic solvents, acids and bases.
• high resin polymerization speed to allow rapid installation of the coating and guarantee rapid execution of the site, while allowing normal use of the soil quickly after installation.
• absence of odor from the resin components, so as to improve the working conditions of the operators on the site and, when the site progresses in stages at a work place, neighboring workers; this condition is particularly important to fulfill because the use of odoriferous components such as methyl methacrylate most often requires the presence on site of the qualified safety representative of the company having requested the work and most often risks disrupting the work of other workers in this company. In addition, if the site must be carried out or continued after normal working days, in particular on Saturday and Sunday, then in many countries it will be necessary to remunerate site operators at a rate higher than that of ordinary days and / or obtain prior administrative authorization from the local authorities responsible for labor regulations and / or respect for the environment.

The combination of these multiple technical requirements would allow to solve both technical problems (mechanical strength and thermal), economical (working speed, and therefore cost), of hygiene and environment posed in the building industry public and industrial by covering floors and walls either in new construction either in the repair or renewal of already existing floors and walls.

dans laquelle R, R' et R" sont choisis indépendamment l'un de l'autre parmi l'atome d'hydrogène et les radicaux alkyles ayant de 1 à 4 atomes de carbone et n est un entier de 1 à 10, ainsi qu'un accélérateur de polymérisation soigneusement sélectionné.The present invention is based on the surprising discovery that these various problems can be solved by the use of a paraffin-free resin composition and mainly comprising at least one alkoxylated bisphenol A di (alk) acrylate of general formula:

in which R, R 'and R "are chosen independently of one another from the hydrogen atom and the alkyl radicals having from 1 to 4 carbon atoms and n is an integer from 1 to 10, as well as '' a carefully selected polymerization accelerator.

• au moins 50 parties en poids d'au moins un di(alk)acrylate de bisphénol A alcoxylé de formule (I),
• de 0 à 46 parties en poids d'au moins un comonomère éthyléniquement insaturé copolymérisable avec le composé de formule (I) et capable de diminuer la viscosité de ce dernier, et
• de 0,1 à 4 parties en poids d'au moins un accélérateur de décomposition de peroxyde organique,
  et dont le second composant (B) comprend, pour 100 parties en poids de (A) :
• de 3 à 12 parties en poids d'au moins un catalyseur de polymérisation de type peroxyde organique, et
• au moins un accélérateur de polymérisation présent dans une proportion comprise entre 0,5 et 9 fois le poids dudit catalyseur de polymérisation.

A first object of the present invention therefore consists of a paraffin-free resin composition conditioned in the form of a two-component system, the first component (A) of which, per 100 parts by weight:

• at least 50 parts by weight of at least one alkoxylated bisphenol A di (alk) acrylate of formula (I),
• from 0 to 46 parts by weight of at least one ethylenically unsaturated comonomer copolymerizable with the compound of formula (I) and capable of reducing the viscosity of the latter, and
• from 0.1 to 4 parts by weight of at least one decomposition accelerator for organic peroxide,
  and the second component (B) of which, per 100 parts by weight of (A):
• from 3 to 12 parts by weight of at least one polymerization catalyst of the organic peroxide type, and
• at least one polymerization accelerator present in a proportion of between 0.5 and 9 times the weight of said polymerization catalyst.

As examples of compounds of formula (I) which can be used in the resin composition according to the invention include 2,2-bis (4-methacryloxy di-ethoxy phenyl) propane, 2,2-bis (4-methacryloxy tri-ethoxy phenyl) propane, 2,2-bis (4-methacryloxy tetraethoxy phenyl) propane, 2,2-bis (4-methacryloxy pentaethoxy phenyl) propane, 2,2-bis (4-methacryloxy hexaethoxy phenyl) propane, 2,2-bis (4-methacryloxy hepta-ethoxy phenyl) propane, 2,2-bis (4-methacryloxy octa-ethoxy phenyl) propane, 2,2-bis (4-methacryloxy di-propoxy phenyl) propane, 2,2-bis (4-methacryloxy tri-propoxy phenyl) propane, 2,2-bis (4-methacryloxy octa-propoxy phenyl) propane, 2,2-bis (4-methacryloxy di-butoxy phenyl) propane, 2,2-bis (4-methacryloxy tri-butoxy phenyl) propane, 2,2-bis (4-methacryloxy octa-butoxy phenyl) propane, 2,2-bis (4-acryloxy di-ethoxy phenyl) propane, 2,2-bis (4-acryloxy di-butoxy phenyl) propane, 2 (4-methacryloxy di-ethoxy phenyl) -2 (4-methacryloxy tri-ethoxy phenyl) propane, 2 (4-methacryloxy di-propoxy phenyl) 2 (4-methacryloxy tri-ethoxy phenyl) propane, 2,2-bis (4-α-ethylacryloxy di-ethoxy phenyl) propane, 2,2-bis (α-propylacryloxy di-ethoxy phenyl) propane and 2 (4-α-ethylacryloxy di-ethoxy phenyl) -2 (4-methacryloxy di-ethoxy phenyl) propane.

• les (méth)acrylates d'alkyle dont le groupe alkyle est de préférence un groupe alkyle linéaire possédant de 8 à 12 atomes de carbone, tels que l'acrylate et le méthacrylate de n-octyle, l'acrylate et le méthacrylate de n-nonyle, l'acrylate et le méthacrylate de n-décyle et l'acrylate et le méthacrylate de n-dodécyle.
• le styrène et, de préférence, les styrènes substitués par des groupes alkyles tels que les vinyltoluènes, l'alphaméthylstyrène et le tertiobutylstyrène.
• des (méth)acrylates de polyol comme les diacrylates et diméthacrylates de l'éthylèneglycol, du propylèneglycol, du 1,3-butanédiol, du 1,4-butanédiol, du 1,6-hexane-diol, du néopentylglycol, du 1,4-cyclo-hexane-diol, du 1,4-cyclo-hexane-diméthanol, du 2,2,4-triméthyl- 1,3-pentanédiol, du 2-éthyl-2-méthyl- 1,3propanédiol, du 2,2-diéthyl-1,3-propanédiol, du diéthylèneglycol, du dipropylèneglycol, du triéthylèneglycol, du tripropylèneglycol, du tétraéthylèneglycol, du tétrapropylèneglycol, du triméthyloléthane, du triméthylopropane, du glycérol, du pentaérythritol, les triacrylates et triméthacrylates du triméthyloléthane, du triméthylolpropane, du glycérol, du pentaerythritol, les tétraacrylates et tétraméthacrylates du pentaerythritol, les di(méth)acrylates à hexa(méth)acrylates du dipentaerythritol, les poly(méth)acrylates de polyols mono- ou polyéthoxylés ou mono- ou polyproxylés tels que le triacrylate et le triméthacrylate du triméthyol-propane triéthoxylé, du triméthylolpropane tripropoxylé, le triacrylate et le triméthacrylate du glycérol tripropoxylé, le triacrylate, le triméthacrylate, le tétraacrylate et le tétraméthacrylate du pentaérythritol tétraéthoxylé, et leurs mélanges en toutes proportions.
• les (méth)acrylates de dicyclopentényle et de dicyclopentényloxyalkyle tels que l'acrylate et le méthacrylate de dicyclopentényloxyéthyle, l'acrylate et le méthacrylate de dicyclopentényloxyisopropyle et le méthacrylate de dicyclopentényloxynéopentyle.

The ethylenically unsaturated comonomer optionally present must be able to fully copolymerize with the compound of formula (I), that is to say without remaining in the free state in the resin, and also be able to contribute to the reduction of viscosity of the monomer system. Preferably, this comonomer must also be low volatility and low odor so as not to lose the advantages linked to the use of the compound of formula (I). As examples of such comonomers one can cite:

• alkyl (meth) acrylates, the alkyl group of which is preferably a linear alkyl group having from 8 to 12 carbon atoms, such as n-octyl acrylate and methacrylate, n- acrylate and methacrylate nonyl, n-decyl acrylate and methacrylate and n-dodecyl acrylate and methacrylate.
• styrene and, preferably, styrenes substituted by alkyl groups such as vinyltoluenes, alphamethylstyrene and tert-butylstyrene.
• polyol (meth) acrylates such as ethylene glycol diacrylates and dimethacrylates, propylene glycol, 1,3-butanediol, 1,4-butanediol, 1,6-hexane diol, neopentylglycol, 1,4 -cyclo-hexane-diol, 1,4-cyclo-hexane-dimethanol, 2,2,4-trimethyl-1,3-pentanediol, 2-ethyl-2-methyl-1,3propanediol, 2,2 -diethyl-1,3-propanediol, diethylene glycol, dipropylene glycol, triethylene glycol, tripropylene glycol, tetraethylene glycol, tetrapropylene glycol, trimethylolethane, trimethylopropane, glycerol, pentaerythritol, triacrylates, trimacrylates and trimethacrylate glycerol, pentaerythritol, tetraacrylates and tetramethacrylates of pentaerythritol, di (meth) acrylates to hexa (meth) acrylates of dipentaerythritol, poly (meth) acrylates of monolo- or polyethoxylated or mono- or polyproxylated polyols such as triacrylate trimethyo trimethacrylate triethoxylated l-propane, tripropoxylated trimethylolpropane, triacrylate and tripropoxylated glycerol trimethacrylate, triacrylate, trimethacrylate, tetraacrylate and pentaerythritol tetraethoxylated tetramethacrylate, and mixtures thereof.
• dicyclopentenyloxy dicyclopentenyloxyalkyl (meth) acrylates such as dicyclopentenyloxyethyl acrylate and methacrylate, dicyclopentenyloxyisopropyl acrylate and methacrylate and dicyclopentenyloxyneopentyl methacrylate.

As examples of decomposition accelerators organic peroxide, there may be mentioned metal salts, usually called "driers", such as those of acids heavy aliphatics having from 4 to 30 carbon atoms approximately like butyrates, pentanoates, hexanoates and octoates, or those of naphthenic acids, as well as aromatic amines. The component metallic of these salts can be calcium, copper, zinc, manganese, potassium, lead, cobalt, iron, vanadium or zirconium. The salts preferred are the cobalt, potassium and calcium naphthenates.

The second component (B) mainly comprises a organic peroxide polymerization catalyst of preferably soluble in the compound of formula (I) and (the case if applicable) the ethylenically unsaturated comonomer. We hear by la a peroxide or hydroperoxide derived from a hydrocarbon compound having from 3 to about 18 carbon atoms. As examples such catalysts that may be mentioned include tertioburyl hydroperoxides, cumene, methyl ethyl ketone and diisopropylbenzene as well than benzoyl peroxide, tert-butyl perbenzoate, 2,2 bis (tert-butylperoxy) butane, bis (1-hydrorycyclohexyl) peroxide, tert-butylperoxy-isopropylcarbonate and methyl ethyl ketone peroxide.

• d'une part des monomères et oligomères polyinsaturés, notamment de préférence ceux dont l'insaturation est de type allylique, par exemple le triméthylolpropane diallyl éther, le triallyl isocyanurate et les éthers polyallyliques tels que ceux de formule générale
  
  dans laquelle n est un nombre entier allant de 2 à 10 et R₁ est choisi parmi l'hydrogène et le radical méthyle. De tels oligomères sont disponibles commercialement auprès de la société MONSANTO et se présentent sous la forme de liquides incolores. Ils sont particulièrement efficaces par le fait que le carbone situé entre la double liaison allylique et l'oxygène porte au moins, de préférence deux, hydrogène(s) labile(s).
• d'autre part des composés aromatiques portant au moins l'une des fonctions aldhéhyde, éther et acrylique, tels que la vanilline et l'acrylate de benzyle.

As polymerization accelerator present in the second component (B), there may be mentioned:

• on the one hand, polyunsaturated monomers and oligomers, in particular preferably those whose unsaturation is of allyl type, for example trimethylolpropane diallyl ether, triallyl isocyanurate and polyallyl ethers such as those of general formula
  
  in which n is an integer ranging from 2 to 10 and R ₁ is chosen from hydrogen and the methyl radical. Such oligomers are commercially available from the company MONSANTO and are in the form of colorless liquids. They are particularly effective in that the carbon located between the allylic double bond and the oxygen carries at least, preferably two, labile hydrogen (s).
• on the other hand aromatic compounds carrying at least one of the aldehyde, ether and acrylic functions, such as vanillin and benzyl acrylate.

The compounds of this family have the secondary function of reduce the tackiness of the floor covering within time following the installation and therefore to decrease the duration during which the ground is impassable for wandering and circulation of gear.

• soit en tant que primaire d'accrochage sur une couche de béton ou de mortier hydraulique, auquel cas ledit primaire d'accrochage sera obtenu simplement en mélangeant les composants (A) et (B) sous forme d'une couche de 0,1 à 0,5 mm environ d'épaisseur, selon l'état du support.
• soit en tant que couche de finition sur un mortier synthétique, auquel cas ladite couche de finition sera obtenue en mélangeant les composants (A) et (B) et le cas échéant au moins un pigment organique ou minéral sous forme d'une couche de 0,2 à 0,6 mm environ.

The two-component resin composition (A) and (B) described above can be used in the constitution of a floor covering.

• either as a bonding primer on a layer of concrete or hydraulic mortar, in which case said bonding primer will be obtained simply by mixing the components (A) and (B) in the form of a layer of 0.1 to 0.5 mm thick, depending on the condition of the support.
• either as a finishing layer on a synthetic mortar, in which case said finishing layer will be obtained by mixing the components (A) and (B) and, where appropriate, at least one organic or mineral pigment in the form of a layer of 0 , 2 to 0.6 mm approximately.

In both cases, the constitution of the two-party system components is such that the resin cures in a very short time short during the mixing stage, most often a time does not not exceeding one hour.

A second object of the present invention consists of a synthetic mortar comprising on the one hand a composition of two-component resin A and B) as described above and on the other hand inert mineral charges in a ratio in weight, with respect to the resin composition (i.e. sum of components A and B), between approximately 1 and 10. So in the synthetic mortar according to the invention, the resin represents a proportion of between 10% and 50% approximately by weight, the rest being made up of the charges. They may present a average particle size between 100 µm and 10 mm approximately. They can consist of sand, crushed stone, gravel, Portland cement, calcium carbonate, clay or silica for example. As a general rule, the loads of so as to provide a vacuum volume requiring the minimum quantity of resin to fill the voids and to obtain a good ease of Implementation. It is known that for particle size loads constant, large particles require less resin but small particles provide a synthetic mortar with better mechanical properties. So depending on the nature and the viscosity of the resin, the skilled person can select the average particle size of the fillers adapted to the desired properties for synthetic mortar. As with a top coat, the synthetic mortar according to the invention may further comprise at minus an organic or mineral pigment in the proportions usual.

The synthetic mortar manufacturing process according to the invention consists in mixing efficiently and in a manner homogeneous the components (A) and (B) of the resin with the fillers inert minerals in the proportions of 1 to 10 parts by weight of charges for 1 part by weight of the sum of the components (A) and (B). This mixing can be carried out by any method known in the mortar technique either manually or, preferably, by using a device for weighing and mixing the ingredients cited above. Mixing can be done without special precautions at any temperature between about -40 ° C and + 50 ° C. As in the previous case of the constitution of a coating of soil, the time necessary and sufficient for the polymerization of the mixture is extremely short, usually an hour at most. According to envisaged applications, that is to say according to the places in which the synthetic mortar according to the invention is used, it presents preferably in the form of a layer of 1 to 80 mm approximately thick.

Another object of the present invention is a method covering of floors and walls including the application, for manual or mechanical float, of a resin composition according to the invention and / or a synthetic mortar according to the invention, such as described previously. This process has many advantages for the applicator, in particular the absence of odor linked to resin components, the high rate of polymerization, the rapid disappearance after the sticky phenomenon of the resin (especially when the resin and / or mortar include an oligomeric polyunsaturated ether) and, ultimately, the rapidity the laying of the covering whatever the temperature in the premises of work.

• d'une part un primaire d'accrochage en contact avec le béton ou mortier hydraulique, comprenant une composition de résine selon l'invention et d'épaisseur de préférence comprise entre 0,1 et 0,5 mm environ.
• d'autre part un mortier synthétique selon l'invention, appliqué sur le primaire d'accrochage et d'épaisseur de préférence comprise entre 1 et 80 mm environ.

A final object of the present invention consists in covering floors or walls comprising a resin composition according to the invention and / or a synthetic mortar according to the invention, as described above. When this floor covering is intended to be applied to concrete or hydraulic mortar, it is generally essential that said covering include:

• on the one hand, a bonding primer in contact with concrete or hydraulic mortar, comprising a resin composition according to the invention and of thickness preferably between approximately 0.1 and 0.5 mm.
• on the other hand, a synthetic mortar according to the invention, applied to the bonding primer and with a thickness preferably between 1 and 80 mm approximately.

When the porosity of the floor covering is not indifferent, in particular for reasons of hygiene and / or resistance to chemical attack (for example in laboratories, hospitals or premises in the food industry) or for aesthetic reasons in reception areas customers, the floor covering according to the invention may additionally include a finishing layer, possibly colored by pigmentation, applied to synthetic mortar and comprising a resin composition according to the invention of thickness preferably between 0.2 and 0.6 mm approximately. In this case the flooring will look pleasing to the eye while being perfectly smooth and therefore easy to clean, including by means appliances operating with water vapor at a close temperature 100 ° C.

The examples below are offered purely illustrative and not limiting of the present invention.

EXAMPLE 1

• comme premier composant (A) un mélange de 60 kg de diméthacrylate de bisphénol A éthoxylé commercialisé par la société SARTOMER sous la dénomination SR 348, 8 kg d'acrylate de n-nonyle, 6 kg de triméthacrylate de triméthylolpropane commercialisé par la société SARTOMER sous la dénomination SR 350 et 2 kg de naphténate de cobalt.
• comme second composant (B) 6 kg de peroxyde de méthyléthylcétone commercialisé par la société AKZO sous l'appellation BUTANOX.

A resin composition is formed for a bonding primer comprising:

• as first component (A) a mixture of 60 kg of ethoxylated bisphenol A dimethacrylate sold by the company SARTOMER under the name SR 348, 8 kg of n-nonyl acrylate, 6 kg of trimethylolpropane trimethacrylate sold by the company SARTOMER under the name SR 350 and 2 kg of cobalt naphthenate.
• as second component (B) 6 kg of methyl ethyl ketone peroxide sold by the company AKZO under the name BUTANOX.

The composition obtained by mixing components (A) and (B) is can be used as a primer on concrete or mortar hydraulic at 20 ° C.

EXAMPLE 2

• comme premier composant (A) un mélange de 60 kg du composé SR 348 de SARTOMER, 10 kg d'acrylate de n-nonyle, 7 kg du composé SR 350 de SARTOMER et 2 kg de naphténate de cobalt.
• comme second composant (B) un mélange de 6 kg du peroxyde de méthyléthylcétone BUTANOX et de 20 kg d'éther polyallylique commercialisé par MONSANTO sous la dénomination SANTOLINK XI 100.

A resin composition for synthetic mortar is formed comprising:

• as first component (A) a mixture of 60 kg of compound SR 348 from SARTOMER, 10 kg of n-nonyl acrylate, 7 kg of compound SR 350 from SARTOMER and 2 kg of cobalt naphthenate.
• as second component (B) a mixture of 6 kg of methyl ethyl ketone peroxide BUTANOX and 20 kg of polyallyl ether sold by MONSANTO under the name SANTOLINK XI 100.

A synthetic mortar usable for the coating of floors with the temperature of 20 ° C is obtained by mixing the components (A) and (B) with 583 kg of mineral fillers.

EXAMPLE 3

• comme premier composant (A) un mélange de 42 kg du composé SR 348 de SARTOMER, 22 kg de diméthacrylate d'héxanediol, 8 kg du composé SR 350 de SARTOMER et 2 kg de naphténate de cobalt.
• comme second composant (B) 6 kg de peroxyde de méthyléthylcétone et 20 kg de SANTOLINK XI 100.

A resin composition for synthetic mortar is formed comprising:

• as first component (A) a mixture of 42 kg of compound SR 348 from SARTOMER, 22 kg of hexanediol dimethacrylate, 8 kg of compound SR 350 of SARTOMER and 2 kg of cobalt naphthenate.
• as second component (B) 6 kg of methyl ethyl ketone peroxide and 20 kg of SANTOLINK XI 100.

A synthetic mortar usable for the coating of floors with the temperature of 20 ° C is obtained by mixing the components (A) and (B) with 405 kg of mineral fillers.

EXAMPLE 4

• comme premier composant (A) un mélange de 11,7 kg du composé SR 348 de SARTOMER, 0,9 kg du composé SR 350 de SARTOMER, 1,2 kg d'acrylate de n-nonyle et 0,3 kg de naphténate de cobalt.
• comme second composant (B) 0,9 kg d'hydroxyperoxyde de cumène commercialisé par la société AKZO sous la dénomination TRIGONOX K 80.

A resin composition for synthetic mortar is formed comprising:

• as first component (A) a mixture of 11.7 kg of compound SR 348 from SARTOMER, 0.9 kg of compound SR 350 from SARTOMER, 1.2 kg of n-nonyl acrylate and 0.3 kg of naphthenate cobalt.
• as second component (B) 0.9 kg of cumene hydroxyperoxide sold by the company AKZO under the name TRIGONOX K 80.

A synthetic mortar usable for the coating of floors with the temperature of 20 ° C is obtained by mixing the components (A) and (B) with 85 kg of mineral charges essentially based on silica with a particle size between 0.2 and 2 mm.

EXAMPLE 5

• comme premier composant (A) un mélange de 60 kg du composé SR 348 de SARTOMER, 10 kg d'acrylate de n-nonyle, 7 kg du composé SR 350 de SARTOMER et 3 kg de naphténate de cobalt.
• comme second composant (B) un mélange de 5 kg de peroxyde de méthyléthylcétone BUTANOX et de 25 kg du composé SANTOLINK XI 100.

A resin composition for a top coat is formed comprising:

• as first component (A) a mixture of 60 kg of compound SR 348 from SARTOMER, 10 kg of n-nonyl acrylate, 7 kg of compound SR 350 from SARTOMER and 3 kg of cobalt naphthenate.
• as second component (B) a mixture of 5 kg of methyl ethyl ketone peroxide BUTANOX and 25 kg of the compound SANTOLINK XI 100.

The composition obtained by mixing components (A) and (B) is can be used as a top coat on a synthetic mortar with 20 ° C.

Claims (18)

1. Paraffin-free resin composition which is curable in the air and which is packaged in the form of a two-component system, the first component (A) of which comprises, per 100 parts by weight:

   at least 50 parts by weight of at least one alkoxylated bisphenol A di(alk)acrylate of general formula:

   

   in which R, R' and R" are chosen, independently of one another, from the hydrogen atom and alkyl radicals having from 1 to 4 carbon atoms and n is an integer from 1 to 10,

   from 0 to 46 parts by weight of at least one ethylenically unsaturated comonomer which is copolymerizable with the compound of formula (I) and which is capable of decreasing the viscosity of the latter, and

   from 0.1 to 4 parts by weight of at least one organic peroxide decomposition accelerator,
   and the second component (B) of which comprises, per 100 parts by weight of (A):

   from 3 to 12 parts by weight of at least one polymerization catalyst of organic peroxide type, and

   at least one polymerization accelerator present in a proportion of between 0.5 and 9 times the weight of the said polymerization catalyst.
2. Resin composition according to Claim 1, characterized in that the ethylenically unsaturated comonomer which is copolymerizable with the compound of formula (I) is chosen from linear alkyl (meth)acrylates in which the alkyl group possesses from 8 to 12 carbon atoms, styrene and its derivatives substituted by alkyl groups, polyol (meth)acrylates and dicyclopentenyl and dicyclopentenyloxyalkyl (meth)acrylates.
3. Resin composition according to either of Claims 1 and 2, characterized in that the decomposition accelerator present in the component (A) is chosen from metal salts of heavy aliphatic acids having from 4 to 30 carbon atoms or of naphthenic acids and aromatic amines.
4. Resin composition according to one of Claims 1 to 3, characterized in that the catalyst for polymerization of the component (B) is chosen from peroxides and hydroperoxides derived from hydrocarbon compounds possessing from 3 to 18 carbon atoms.
5. Resin composition according to one of Claims 1 to 4, characterized in that the polymerization accelerator present in the component (B) is chosen from polyunsaturated monomers and oligomers.
6. Resin composition according to Claim 5, characterized in that the unsaturation of the said monomers and oligomers is of allyl type.
7. Resin composition according to Claim 6, characterized in that the said polyunsaturated monomer or oligomer is chosen from trimethylolpropane diallyl ether, triallyl isocyanurate and polyallyl ethers of general formula

   

   in which n is an integer ranging from 2 to 10 and R₁ is chosen from hydrogen and the methyl radical.
8. Resin composition according to one of Claims 1 to 4, characterized in that the polymerization accelerator present in the compound (B) is an aromatic compound carrying at least one of the aldehyde, ether and acrylic functional groups.
9. Resin composition according to Claim 8, characterized in that the polymerization accelerator present in the compound (B) is chosen from vanillin and benzyl acrylate.
10. Resin composition according to one of Claims 1 to 9, characterized in that it additionally comprises at least one organic or inorganic pigment.
11. Synthetic mortar comprising, on the one hand, a resin composition according to one of Claims 1 to 10 and, on the other hand, inert fillers in a ratio by weight, with respect to the resin composition, of between 1 and 10.
12. Synthetic mortar according to Claim 11, characterized in that the mean particle size of the inert inorganic fillers is between 100 µm and 10 mm.
13. Process for the manufacture of a synthetic mortar according to either of Claims 11 and 12, comprising the efficient and homogeneous mixing of the components (A) and (B) of the resin with the inert inorganic fillers in the proportions of 1 to 10 parts by weight of fillers per 1 part by weight of the sum of the components (A) and (B).
14. Process for the manufacture of synthetic mortar according to Claim 13, characterized in that the mixing is carried out at a temperature of between -40°C and +50°C.
15. Process for covering floors and walls, comprising the application, by manual or mechanical floating, of a resin composition according to one of Claims 1 to 10 and/or of a synthetic mortar according to either of Claims 11 and 12.
16. Floor or wall covering comprising a resin composition according to one of Claims 1 to 10 and/or a synthetic mortar according to either of Claims 11 and 12.
17. Floor covering according to Claim 16, intended to be applied on a hydraulic mortar or concrete, comprising:

    on the one hand, a bonding primer in contact with the hydraulic mortar or concrete comprising a resin composition according to one of Claims 1 to 10 and with a thickness of between 0.1 and 0.5 mm,

    on the other hand, a synthetic mortar according to either of Claims 11 and 12 applied on the bonding primer and with a thickness of between 1 and 80 mm approximately.
18. Floor covering according to Claim 17, characterized in that it additionally comprises a finishing layer applied on the synthetic mortar and comprising a resin composition according to one of Claims 1 to 10 with a thickness of between 0.2 and 0.6 mm.